Versatile construction material used primarily for reinforcing joints and repairing damage in walls and ceilings.Primary UsesDrywall Joint Reinforcement: Strengthens the seams between drywall or gypsum board panels to prevent cracking.Crack Repair: Hides and stabilizes existing cracks in plasterboard, stucco, or masonry.Patching Holes: Provides a stable base for filling holes in walls before applying joint compound.